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Green Tea Extract для UV Protection (Internal Photoprotection)

B

Research suggests oral green tea polyphenols (250-1,080 mg/day) increased MED by approximately 25%, providing internal photoprotection through antioxidant and anti-inflammatory mechanisms.

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            B

        

        

            
Итог

            
            
Research suggests oral green tea polyphenols (250-1,080 mg/day) increased MED by approximately 25%, providing internal photoprotection through antioxidant and anti-inflammatory mechanisms.

            
            
        

    











    
    

        
        

            

  
Key Statistics





            


    

        
8

        
Исследования

    

    

        
450

        
Участники

    

    

        
            
            ↑
            
        
        
Positive

    

    

        B

        
Оценка

    




        


        
        

        
        
        

            

  
Dosage & Usage





            
mg = milligrams · mcg = micrograms (1,000× smaller) · IU = International Units


            
            

                
Часто используемые дозировки

                

                    
                    

                        
general:

                        
250-500 mg/day green tea extract

                    

                    
                    

                        
skinhealth:

                        
250-500 mg/day standardized to 50-90% EGCG

                    

                    
                

                
                

                    Верхний предел: 800 mg EGCG/day (doses above may cause hepatotoxicity in rare cases)
                

                
            

            

            

            
            

                Лучшее время приёма: With meals (may cause nausea on empty stomach); avoid with iron-rich foods
            

            
        

        

        
        
        

            

  
Safety & Side Effects





            

                
                

                    
Зарегистрированные побочные эффекты

                    
    
                        
                        
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                            ⚠
                            Nausea (especially on empty stomach)
                        
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                            ⚠
                            Insomnia and jitteriness (caffeine content)
                        
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                            ⚠
                            Rare hepatotoxicity at high doses (> 800 mg EGCG/day)
                        
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                            ⚠
                            Reduced iron absorption
                        
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Известные взаимодействия

                    
    
                        
                        
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                            ●
                            Iron supplements (reduces absorption — separate by 2+ hours)
                        
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                            ●
                            Stimulant medications (additive caffeine effects)
                        
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                            ●
                            Blood thinners (may have mild antiplatelet effects)
                        
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                            ●
                            Hepatotoxic medications (potential additive liver stress at high doses)
                        
    • 
                        
                    

                

                

                
                

                    

                        Допустимый верхний уровень потребления: 800 mg EGCG/day (doses above may cause hepatotoxicity in rare cases)
                    

                

                
            

            

                Всегда консультируйтесь с врачом перед началом приёма любых добавок.Всегда консультируйтесь с лечащим врачом перед началом приёма любой добавки.
            

        

        

        
        
        

            

  
Frequently Asked Questions





            




    
    

        
            Does Green Tea Extract help with UV Protection (Internal Photoprotection)?
            
        
        

            Based on 8 studies with 450 participants, there is moderate evidence from clinical studies that Green Tea Extract may support UV Protection (Internal Photoprotection) management. Our evidence grade is B (Good Evidence).
        

    

    
    

        
            How much Green Tea Extract should I take for UV Protection (Internal Photoprotection)?
            
        
        

            Studies have used various dosages. A commonly studied range is 250-500 mg/day green tea extract. Always consult your healthcare provider before starting any supplement regimen.
        

    

    
    

        
            Are there side effects of Green Tea Extract?
            
        
        

            Reported side effects may include Nausea (especially on empty stomach), Insomnia and jitteriness (caffeine content), Rare hepatotoxicity at high doses (> 800 mg EGCG/day), Reduced iron absorption. Most side effects are mild and dose-dependent. Consult your doctor if you experience any adverse reactions.
        

    

    
    

        
            How strong is the evidence for Green Tea Extract and UV Protection (Internal Photoprotection)?
            
        
        

            We rate the evidence as Grade B (Good Evidence). This rating is based on 8 peer-reviewed studies with 450 total participants. The overall direction of effect is positive.
        

    

    




        

        

        
        
        

            

  
Related Evidence





            

                
                

                    
Другие ингредиенты для UV Protection (Internal Photoprotection)

                    

                        
                        
                            Nicotinamide
                            A

                        
                        
                        
                            Niacinamide
                            A

                        
                        
                        
                            Omega-3 Fatty Acids
                            B

                        
                        
                        
                            Astaxanthin
                            B

                        
                        
                        
                            Polypodium leucotomos
                            B

                        
                        
                        
                            Vitamin E
                            C

                        
                        
                    

                

                

                
                

                    
Green Tea Extract для других состояний

                    

                        
                        
                            Acne
                            D

                        
                        
                    

                

                
            

        

        

    


    
    












    

        Отказ от ответственности FDA:
        Данные утверждения не были оценены Управлением по санитарному надзору за качеством пищевых продуктов и медикаментов (FDA). Продукты и информация на этом сайте не предназначены для диагностики, лечения, излечения или профилактики каких-либо заболеваний. Представленные оценки доказательности основаны на нашем анализе опубликованных рецензируемых исследований и не являются медицинской консультацией. Всегда консультируйтесь с лечащим врачом перед началом приёма любых добавок.